Will Martha Stewart be on the cover of 2027 Sports Illustrated Swimsuit Issue
Liquidity-weighted aggregate sits at 7% across 19 Kalshi contracts.
Implied probability
Kalshi
7%
19 contracts
Polymarket
—
not bound
Cross-venue gap
—
single venue
24h move
—
no pin
24h volume
$18
19 contracts
Closes
Dec 31, 2027
467 days
30-day trend
Bracket families
19 clusters across 19 contracts.
These contracts were grouped by title similarity. The headline aggregate combines all clusters; verify the cluster you actually need before quoting a number.
Cluster 1
Will Camille Kostek be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Camille Kostek be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Camille Kostek
KXMEDIACOVERSI-27-CAM
Cluster 2
Will Haley Kalil be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Haley Kalil be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Haley Kalil
KXMEDIACOVERSI-27-HAL
Cluster 3
Will Brooks Nader be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Brooks Nader be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Brooks Nader
KXMEDIACOVERSI-27-BRO
Cluster 4
Will Olivia Dunne be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Olivia Dunne be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Olivia Dunne
KXMEDIACOVERSI-27-OLI
Cluster 5
Will Jordan Chiles be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Jordan Chiles be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Jordan Chiles
KXMEDIACOVERSI-27-JOR
Cluster 6
Will Ciara be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Ciara be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Ciara
KXMEDIACOVERSI-27-CIA
Cluster 7
Will Yumi Nu be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Yumi Nu be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Yumi Nu
KXMEDIACOVERSI-27-YUM
Cluster 8
Will Nina Agdal be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Nina Agdal be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Nina Agdal
KXMEDIACOVERSI-27-NIN
Cluster 9
Will Kate Upton be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Kate Upton be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Kate Upton
KXMEDIACOVERSI-27-KAT
Cluster 10
Will Irina Shayk be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Irina Shayk be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Irina Shayk
KXMEDIACOVERSI-27-IRI
Cluster 11
Will Ashley Graham be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Ashley Graham be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Ashley Graham
KXMEDIACOVERSI-27-ASH
Cluster 12
Will Hunter McGrady be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Hunter McGrady be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Hunter McGrady
KXMEDIACOVERSI-27-HUN
Cluster 13
Will Ella Halikas be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Ella Halikas be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Ella Halikas
KXMEDIACOVERSI-27-ELL
Cluster 14
Will Chrissy Teigen be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Chrissy Teigen be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Chrissy Teigen
KXMEDIACOVERSI-27-CHR
Cluster 15
Will Kim Petras be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Kim Petras be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Kim Petras
KXMEDIACOVERSI-27-KIM
Cluster 16
Will Martha Stewart be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Martha Stewart be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Martha Stewart
KXMEDIACOVERSI-27-MAR
Cluster 17
Will Lauren Chan be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Lauren Chan be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Lauren Chan
KXMEDIACOVERSI-27-LAU
Cluster 18
Will Hailey Van Lith be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Hailey Van Lith be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Hailey Van Lith
KXMEDIACOVERSI-27-HAI
Cluster 19
Will Jasmine Sanders be on the cover of 2027 Sports Illustrated Swimsuit Issue
Will Jasmine Sanders be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Jasmine Sanders
KXMEDIACOVERSI-27-JAS
Analysis
This represents the likelihood that Martha Stewart will be chosen as the cover model for Sports Illustrated's 2027 Swimsuit Issue. At 8%, the prediction reflects Stewart's age (85 in 2027) and traditional swimsuit modeling demographics, where cover selections typically feature younger models in their 20s-40s. SI Swimsuit has occasionally featured older models and celebrities in recent years, which could theoretically expand Stewart's chances, but the historical pattern and competitive field of other candidates (with Haley Kalil at 14% being the top individual contract) suggests the market views this as an unlikely outcome. The resolution depends on SI's editorial decisions, which typically occur in late 2026 or early 2027 when cover announcements are made.
- ›Martha Stewart's age (85) compared to historical SI Swimsuit cover model age ranges, which have predominantly featured models under 60
- ›SI Swimsuit's stated editorial direction and recent cover choices—whether they've emphasized diversity in age representation or continued traditional demographic targeting
- ›Competition from other named candidates, particularly Haley Kalil (14%) and Camille Kostek (13%), plus unnamed potential models
- ›Martha Stewart's current public profile and media visibility relative to professional swimsuit models and celebrities in the fashion/entertainment space
- ›The official cover announcement timing and any SI Swimsuit previews or statements made in Q4 2026 that signal their selection criteria
What moved the line
- Sep 19Haley Kalil↓9pp14→5¢ · Kalshi
- Sep 18Ella Halikas↑9pp6→15¢ · Kalshi
- Sep 17Ella Halikas↓6pp12→6¢ · Kalshi
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These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.
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How we compute these odds
SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.
For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.
Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.
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